diff options
Diffstat (limited to 'gdb/gdbserver/linux-x86-tdesc.c')
| -rw-r--r-- | gdb/gdbserver/linux-x86-tdesc.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/gdb/gdbserver/linux-x86-tdesc.c b/gdb/gdbserver/linux-x86-tdesc.c new file mode 100644 index 0000000..0d0be83 --- /dev/null +++ b/gdb/gdbserver/linux-x86-tdesc.c @@ -0,0 +1,177 @@ +/* GNU/Linux/x86-64 specific target description, for the remote server + for GDB. + Copyright (C) 2017 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include "server.h" +#include "tdesc.h" +#include "linux-x86-tdesc.h" +#include "x86-xstate.h" +#include <inttypes.h> + +#if defined __i386__ || !defined IN_PROCESS_AGENT +#include "../features/i386/32bit-core.c" +#include "../features/i386/32bit-linux.c" +#include "../features/i386/32bit-sse.c" +#include "../features/i386/32bit-avx.c" +#include "../features/i386/32bit-avx512.c" +#include "../features/i386/32bit-mpx.c" +#include "../features/i386/32bit-pkeys.c" + +/* Defined in auto-generated file i386-linux.c. */ +void init_registers_i386_linux (void); +extern const struct target_desc *tdesc_i386_linux; + +/* Defined in auto-generated file i386-mmx-linux.c. */ +void init_registers_i386_mmx_linux (void); +extern const struct target_desc *tdesc_i386_mmx_linux; + +/* Defined in auto-generated file i386-avx-linux.c. */ +void init_registers_i386_avx_linux (void); +extern const struct target_desc *tdesc_i386_avx_linux; + +/* Defined in auto-generated file i386-avx-mpx-linux.c. */ +void init_registers_i386_avx_mpx_linux (void); +extern const struct target_desc *tdesc_i386_avx_mpx_linux; + +/* Defined in auto-generated file i386-avx-avx512-linux.c. */ +void init_registers_i386_avx_avx512_linux (void); +extern const struct target_desc *tdesc_i386_avx_avx512_linux; + +/* Defined in auto-generated file i386-avx-mpx-avx512-linux.c. */ +void init_registers_i386_avx_mpx_avx512_pku_linux (void); +extern const struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux; + +/* Defined in auto-generated file i386-mpx-linux.c. */ +void init_registers_i386_mpx_linux (void); +extern const struct target_desc *tdesc_i386_mpx_linux; +#endif + +static struct target_desc *i386_tdescs[X86_TDESC_LAST] = { }; + +void +initialize_low_tdesc () +{ +#if defined __i386__ || !defined IN_PROCESS_AGENT + init_registers_i386_linux (); + init_registers_i386_mmx_linux (); + init_registers_i386_avx_linux (); + init_registers_i386_mpx_linux (); + init_registers_i386_avx_mpx_linux (); + init_registers_i386_avx_avx512_linux (); + init_registers_i386_avx_mpx_avx512_pku_linux (); +#endif +} + +#if defined __i386__ || !defined IN_PROCESS_AGENT + +/* Return the target description according to XCR0. */ + +const struct target_desc * +i386_linux_read_description (uint64_t xcr0) +{ + struct target_desc **tdesc = NULL; + + if (xcr0 & X86_XSTATE_PKRU) + tdesc = &i386_tdescs[X86_TDESC_AVX_MPX_AVX512_PKU]; + else if (xcr0 & X86_XSTATE_AVX512) + tdesc = &i386_tdescs[X86_TDESC_AVX_AVX512]; + else if ((xcr0 & X86_XSTATE_AVX_MPX_MASK) == X86_XSTATE_AVX_MPX_MASK) + tdesc = &i386_tdescs[X86_TDESC_AVX_MPX]; + else if (xcr0 & X86_XSTATE_MPX) + tdesc = &i386_tdescs[X86_TDESC_MPX]; + else if (xcr0 & X86_XSTATE_AVX) + tdesc = &i386_tdescs[X86_TDESC_AVX]; + else if (xcr0 & X86_XSTATE_SSE) + tdesc = &i386_tdescs[X86_TDESC_SSE]; + else if (xcr0 & X86_XSTATE_X87) + tdesc = &i386_tdescs[X86_TDESC_MMX]; + + if (tdesc == NULL) + return NULL; + + if (*tdesc == NULL) + { + *tdesc = new target_desc (); + + long regnum = 0; + + if (xcr0 & X86_XSTATE_X87) + regnum = create_feature_i386_32bit_core (*tdesc, regnum); + + if (xcr0 & X86_XSTATE_SSE) + regnum = create_feature_i386_32bit_sse (*tdesc, regnum); + + regnum = create_feature_i386_32bit_linux (*tdesc, regnum); + + if (xcr0 & X86_XSTATE_AVX) + regnum = create_feature_i386_32bit_avx (*tdesc, regnum); + + if (xcr0 & X86_XSTATE_MPX) + regnum = create_feature_i386_32bit_mpx (*tdesc, regnum); + + if (xcr0 & X86_XSTATE_AVX512) + regnum = create_feature_i386_32bit_avx512 (*tdesc, regnum); + + if (xcr0 & X86_XSTATE_PKRU) + regnum = create_feature_i386_32bit_pkeys (*tdesc, regnum); + + init_target_desc (*tdesc); + +#ifndef IN_PROCESS_AGENT + static const char *expedite_regs_i386[] = { "ebp", "esp", "eip", NULL }; + (*tdesc)->expedite_regs = expedite_regs_i386; + + if (xcr0 & X86_XSTATE_PKRU) + (*tdesc)->xmltarget = "i386-avx-mpx-avx512-pku-linux.xml"; + else if (xcr0 & X86_XSTATE_AVX512) + (*tdesc)->xmltarget = "i386-avx-avx512-linux.xml"; + else if ((xcr0 & X86_XSTATE_AVX_MPX_MASK) == X86_XSTATE_AVX_MPX_MASK) + (*tdesc)->xmltarget = "i386-avx-mpx-linux.xml"; + else if (xcr0 & X86_XSTATE_MPX) + (*tdesc)->xmltarget = "i386-mpx-linux.xml"; + else if (xcr0 & X86_XSTATE_AVX) + (*tdesc)->xmltarget = "i386-avx-linux.xml"; + else if (xcr0 & X86_XSTATE_SSE) + (*tdesc)->xmltarget = "i386-linux.xml"; + else if (xcr0 & X86_XSTATE_X87) + (*tdesc)->xmltarget = "i386-mmx-linux.xml"; + else + internal_error (__FILE__, __LINE__, + "unknown xcr0: %" PRIu64, xcr0); +#endif + } + + return *tdesc;; +} +#endif + +#ifndef IN_PROCESS_AGENT +int +i386_get_ipa_tdesc_idx (const struct target_desc *tdesc) +{ + for (int i = 0; i < X86_TDESC_LAST; i++) + { + if (tdesc == i386_tdescs[i]) + return i; + } + + /* If none tdesc is found, return the one with minimum features. */ + return X86_TDESC_MMX; +} + +#endif |